Valve.



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ALVE.

APPLICATION FILED JULY6,1910

COLUMBIA PLANOGRAPH CO WASHINGTON D c WITNESSES: WM 03 mm- UNTT a ins anMIL T TWTQE THORNTON E. WINIZ, OF HUMBLE, TEXAS.

VALVE.

Application filed. July 6, 1910. Serial No. 570,685.

I '0 all whom it may concern.

Be it known that I, THORNTON E. WVINTZ, a citizen of the United States,residing at Humble, in the county of Harris and State of Texas, haveinvented certain new and useful Improvements in Valves, of which thefollowing is a specification.

Wy invention relates to new and useful improvements in valves.

The object of the invention is to provide a valve of the characterdescribed composed of a stationary valve seat and a movable partdesigned to operate thereagainst, said movable part being so constructedas to minimize the wear thereof and also of the'seat against which thesame operates.

With the above and other objects in view my invention has particularrelation to certain novel features of construction and operation anexample of which is given in this specification and illustrated in theaccompanying drawings wherein Figure 1, is a sectional side elevation ofthe complete valve and Fig. 2 is a bottom plan view of the seat.

Referring now more particularly to the drawings, wherein like numeralsof reference designate similar parts in each of the figures, the numeral1 refers to the valve seat which is designed to be screwed into the pumpcasing in the ordinary manner. From the center of this seat is supportedthe valve stem 2, secured by screw thread as shown in Fig. 1. Fit-tingover this stem is the thimble 3 which is designed to reciprocate up anddown thereon and which carries at its lower end an annular rim designedto support the disk 4: which is preferably composed of rubber or somesimilar mate rial, and is backed by the metallic plate 5.

The numeral 6 refers to a nut which is secured on said thimble by meansof suitable threads and which may be screwed closely against the plate 5and is designed to hold said plate and disk firmly between said nut andthe flange carried by the lower end of the thimble 3. This arrangementwill effectually prevent the liquid and the grit and sand carriedthereby, from passing between the disk and valve stem and cutting andwearing away said disk, as is the case in valves now used in a similarmanner. The disk 4: is normally held against its opposing seat by meansof a coil spring 7 which operates thereagainst and in resistance to thepump casing 8. The plate 5 is provided with an annular rib 9 which isprovided to receive the lower end of this spring and to hold the same inplace.

The prime object of this invention is to prevent the passage of thefluid back and forth through between the movable part and the valve stemand the cutting and wearing away of the valve parts by the grit and sandcarried by said fluid, and it is obvious that this object will beattained by means of the construction hereinbefore set forth.

What I claim, is

1. In a device of the character described a valve seat carrying threadsupon its periphery, a centrally located valve stem supported thereby, athimble which carries a flange upon its lower end and integral therewithand forming a housing for said valve stem and designed to reciprocateupon said stem, a disk carried by said thimble and designed toreciprocate with said thimble on said stem, a nut secured upon saidthimble and designed to hold said thimble and disk rigid with relationto each other and a resilient means surrounding said thimble andoperating in resistance to said disk and normally holding said diskagainst said seat.

2. In a device of the character described a valve seat carrying threadsupon its periphery, a valve stem supported thereby, a thimble carrying aflange upon its lower end and the other end of which is closed, aresilient disk carried by said thimble, a metallic backing for saidresilient disk, said thimble, disk, and metallic backing designed toreciprocate upon said stem and form a housing therefor, an annular ribcarried upon the upper surface of said metallic backing, a coil springsurrounding said thimble and resting, normally, on said metallic backingand adapted, normally, to hold said resilient disk against said valve.

3. In a device of the character described; a valve seat carrying threadsupon its periphery; a centrally located valve stem carried thereby; avalve, said valve comprising a rubber disk, a thimble, having one endclosed and the other end carrying a flange and passing through said diskand designed to reciprocate upon said stem, and a metallic backing forsaid disk; means for holding said thimble, disk, and metallic backingfirmly together; an annular rib carried upon the upper side of saidmetallic backing name to this s and a coil spring surrounding saidthimble and resting, normally Within said annular v rib and on saidmetallic backing and adapted to, normally, hold said disk against saidvalve seat.

In testimony whereof I have signed my pecification in the presence oftwo subscribing wltnesses.

THORNTON E. WINTZ.

A. TOMPKINS.

Copies of this patent may be obtained for five cents each, by addressinWashington, D. G.

g the Commissioner of Patents,

